Disk image of installations not recognized after download

Question

Level 1

8 points

Disk image of installations not recognized after download

I have tried to install the suggested software that Software Update suggests but once the download is complete, I click on the disk image and I get a dialogue box stating that the software is not recognized.

I tried downloading other software (a game) and I got the same response.

iMac, Mac OS X (10.4.7)

Posted on Dec 7, 2008 2:47 PM

Reply

Answer 1

Kappy

Level 10

362,007 points

Dec 8, 2008 7:28 PM in response to Melford

This would tend to occur when the hard drive is corrupted or your OS X installation is dysfunctional. Updates that don't mount may also be due to a failed download that produces an incomplete or corrupted file.

It's possible this is occurring because the new hard drive was not prepped correctly Generally I recommend the following procedure for prepping a new drive:

Extended Hard Drive Preparation

1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger or Leopard.)

2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.

3. Set the number of partitions from the dropdown menu (use 1 partition unless you wish to make more.) Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (only required for Intel Macs) then click on the OK button. Click on the Partition button and wait until the volume(s) mount on the Desktop.

4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.

5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.

6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive.

Be sure you are using the original OS X installer discs that came with your computer. If your computer originally came with an Intel version of Tiger then you will need a retail copy of Leopard in order to install it on the computer. If your computer came with a version of Leopard previous to 10.5.5, then you can update to 10.5.5 via Software Update or by downloading the 10.5.5 Combo Updater directly from Apple's download site.

Reply

Answer 2

Melford Author

Level 1

8 points

Dec 20, 2008 5:30 PM in response to Kappy

+Well, I'd like to be helpful but it's been 9 days, and I have no idea what you've done, how you've done it, etc. Did you reinstall OS X from scratch? What version did you install? What version are you now trying to update?+
+Mounting failed usually means you have a defective disc image.+

I re-installed OS X from scratch. I downloaded the original macbook software that came with my computer that had the Tiger version. Then, after I finished that download, I installed Leopard. I have tried to use Software Update to update iTunes, Quicktime, iWork, Safari and Leopard, but it gets partially through and says that it can't continue the download and I get the option to restart the computer (I guess to install the software that it did download) but then it gets stuck "configuring installation." If I try to go to the web site and download the update from the site, it always gets done downloading and then I get the message that "Mounting failed". If I go to the Downloads folder and click on what looks like a disk image then I get a dialogue box that says "Warning" at the top and then something like "Safari 321.Leopard.dmg not recognized" or "iTunes802-1.dmg not recognized"

What do you mean by 'defective disk image'?

Reply

Answer 3

Kappy

Level 10

362,007 points

Dec 7, 2008 3:25 PM in response to Melford

Please tell us the exact wording of the error message. Are you doing this using Software Update or downloading the standalone updaters directly from the Apple support site?

Reply

Answer 4

Melford Author

Level 1

8 points

Dec 8, 2008 4:40 PM in response to Kappy

When I have attempted to download the updates with Software Update, the computer will begin to install by restarting and then it gets stuck on the dialogue box "Configuring Installation" with the status bar.

When I have attempted to download the updates from the Apple Support Site I get a "Warning" dialogue box with the message "the following disk image failed to mount." Then in the table below I have Image: MacOSXpd10.5.5dm Reason: not recognized.

Some background information:

I just installed a new hard drive and installed Leopard on the new drive. The old drive crashed and so I had to replace it. I wanted to get the software up to date, thus, the downloading of new updates.

Thanks

Reply

Answer 5

Melford Author

Level 1

8 points

Dec 8, 2008 7:42 PM in response to Kappy

Hmm...

I'm no Mac Genius, but in between my response and your last response, I wondered if it might have been the hard drive so I had already verified the disk and erased it and re-installed Leopard. Now, what I didn't do (and where I cease to be so smart) was re-install the original Tiger OS. I will try that next and let you know how it all turns out.

Here's hoping...

Reply

Answer 6

Melford Author

Level 1

8 points

Dec 17, 2008 5:22 PM in response to Kappy

Okay, I followed your instructions completely and am still having a hard time getting any updates to load. If I go through Software update, the Mac OS 5.5 update will download but nothing else and then I will be prompted to restart my computer and when it comes up to the "Configuring Installation" nothing happens.

If I go the actual software download page, the download will begin and then I get a message stating that the "Mounting Failed."

Any other suggestions?

Reply

Answer 7

Kappy

Level 10

362,007 points

Dec 17, 2008 6:07 PM in response to Melford

Well, I'd like to be helpful but it's been 9 days, and I have no idea what you've done, how you've done it, etc. Did you reinstall OS X from scratch? What version did you install? What version are you now trying to update?

Mounting failed usually means you have a defective disc image.

Reply

Answer 8

Kappy

Level 10

362,007 points

Dec 20, 2008 9:31 PM in response to Melford

I downloaded the original macbook software that came with my computer that had the Tiger version.

How? You cannot download Tiger in the original version that came with your computer. Tiger is not downloadable in any version. Either you purchase it or it came with the computer.

Is your Leopard disc the retail version? Does this article relate to your updating problem: Mac OS X 10.5- Software Update stops responding during "Configuring installation"?

There should be no need to install Tiger before installing Leopard if you have the retail Leopard installer disc. You can simply reformat the drive and install Leopard from scratch.

By defective disc image I mean the disc is defective, doesn't work properly, maybe scratched, etc.

Reply

Answer 9

Melford Author

Level 1

8 points

Feb 5, 2009 6:20 AM in response to Melford

Okay,

I know it has been a while since I last posted--but I really didn't have time to focus on this problem until now.

I used the wrong term before: I said I 'downloaded' Tiger when I meant to say 'loaded' Tiger--but, according to you, it wasn't necessary either way,

I am again trying to use Software Update to download the OS 10.5.6 update and it has now started giving me a new message:

"The digital signature for this package is incorrect. The package may have been tampered with or corrupted since being signed by “Apple”."

Hmm...Now I'm really stumped.

Reply